.banner{
  width: 100%;
  height: 350px;
  margin-top: 26px;
}
.banner_c{
  width: 1200px;
  margin: 0 auto;
}
.banner .banner_c .banner_left{
  float: left;
  width: 300px;
  height: 350px;
}
.banner .banner_c .banner_left ul li{
  position: relative;
  float: left;
  width: 300px;
  height: 46px;
  font-size: 18px;
  line-height: 46px;
  overflow: hidden;
}

.banner .banner_c .banner_left ul li h3{
  float: left;
  font-size: 18px;
  line-height: 46px;
}

.banner .banner_c .banner_left ul li a{
  padding: 0 13px;
  font-size: 14px;
  color: #555555;
}

.banner .banner_c .banner_left ul li i.right_jiantou{
  position: absolute;
  top: 20px;
  right: 0;
  display: block;
  width: 6px;
  height: 11px;
  background: url(../images/right_jiantou.png) no-repeat 0 0;
}
.banner .banner_c .banner_right{
  position: relative;
  float: left;
  width: 840px;
  height: 346px;
  background-color: pink;
  margin: 10px 0 0 60px;
  overflow: hidden;
}
.banner .banner_c .banner_right .banner_photo ul.banner_show{
  position: absolute;
  top: 0;
  left: 0;
  width: 4200px;
}
.banner .banner_c .banner_right .banner_photo .banner_show li{
  float: left;
  width: 840px;
  height: 346px;
}
.banner .banner_c .banner_right .banner_photo .banner_arrow i {
  display: block;
  position: absolute;
  top: 156px;
  width: 18px;
  height: 34px;
  background: url(../images/banner_arrow_left.png) no-repeat 0 0;
  cursor: pointer;
}
.banner .banner_c .banner_right .banner_photo .banner_arrow i.banner_arrow_left{
  left: 20px;
}

.banner .banner_c .banner_right .banner_photo .banner_arrow i.banner_arrow_right{
  right: 20px;
  background: url(../images/banner_arrow_right.png) no-repeat 0 0;
}

.banner .banner_c .banner_right .banner_photo .banner_arrow i.banner_arrow_left:hover{
  background: url(../images/banner_arrow_left_highlight.png);
}
.banner .banner_c .banner_right .banner_photo .banner_arrow i.banner_arrow_right:hover {
  background: url(../images/banner_arrow_right_highlight.png);
}

.banner .banner_c .banner_right .banner_photo .banner_arrow .banner_arrow_bottom{
  position: absolute;
  left: 50%;
  bottom: 16px;
  transform: translateX(-37.5px);
  width: 75px;
}

.banner .banner_c .banner_right .banner_photo .banner_arrow .banner_arrow_bottom li{
  float: left;
  width: 6px;
  height: 6px;
  border-radius: 3px;
  margin: 0 4px;
  background: rgb(156, 156, 156);
  cursor: pointer;
}
.banner .banner_c .banner_right .banner_photo .banner_arrow .banner_arrow_bottom li.current{
  padding: 0 3px;
  margin: 0 1px;
  background-color: #fff;
}
